Share your experience!
Hi,
I have serious issues with my phone lagging terribly after the latest update to.587. I get better performance if I kill running apps, but it never gets very good.
Anyone else seen this?
Solved! Go to Solution.
Try first of all restarting your phone a couple of times to see if it might fix this. Otherwise, try performing a repair of your phone's software with PC Companion. You can download PC Companion from the link below. 
http://www.sonymobile.com/gb/tools/pc-companion/
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My (pro) is lagging less after the 587 update
Morris,
That's interesting. Did you do anything after the update was applied to your phone?
having suffered from data connections being internittent since the ics upodate - I reset the phone settings which meant putting in the apn again
But nothing else
I am now continually deleting apps i don't use
Try first of all restarting your phone a couple of times to see if it might fix this. Otherwise, try performing a repair of your phone's software with PC Companion. You can download PC Companion from the link below. 
http://www.sonymobile.com/gb/tools/pc-companion/
What do you think about this forum? Let us know by doing this short survey.
Hi,
Thanks for helping me out here.
It turned out that I needed to restart the phone again, even though I had already restarted it multiple times since the update. While starting up the phone actually wrote something about updating and optimizing apps. Don't know what that means though. Since, the phone has run better.
hi
my self chinna im using sony erricson xperia pro mk16i my mobilw working too slow.. due to this slow.. i cant enjying games.. i didnt install any apps... when im trying to open cam after 20secds opening cam.... and screen rotation also too slow...when opening of slide... could u help me.. how to fix te problm
plz.. i love my mobile
my software version is 4.0.4
Download sony update service and repair your phone.